The shelf survives
File formats don't. The video you took on a Nokia in 2007 is probably unplayable now, and even if it isn't, the device that played it back to you is in a drawer, dead. The photo albums in your grandmother's attic still work. The book on her shelf still opens.
We don't say this because we're nostalgic about paper. We say it because we've watched a hundred years of digital file formats come and go, and we know what survives. Books survive.

